Packing joint



Dec. 27, 1927. 1,653,884

J. C. STRAUB PACKING JOINT Filed Dec. 15. 1925 Patented Dec. 27, 192 7.

UNITED STATES PATENT QFFICE.

JOSEPH C. STRAUIB, F BERKELEY, CALIFORNIA, ASSIGNOR T0 HALL-SCOTT MOTORCAR (10., A CORPORATION.

PACKING JOINT.

Application filed December 15, 1925. Serial no. 75,488.

This invention relates to packing joints ings by reference characters, 1indicates an and particularly to an improved packing engine block and 2the cover mounted on the joint wherein the ends of a packing strip topthereof. The cover is held to the block are placed in overlappingrelation to preby screws extending through holes 3. I

a vent leakage thereby, often caused by con preferably make this coverof aluminum.

traction and expansion. Such joints have The purpose of the cover, asillustrated in been heretofore formed by a groove in the the drawings,is to provide a leak-proof face of the element to be packed and layingsplash housing for the valve tappets and a packing strip therein in amanner bring other mechanism on top of the engine block 10 ing the endsof the strip into end to end rela- 1, although it will be understoodthat the tion. If such element has a high coefficient invention is notto be construed as so limited. of expansion and becomes heated, the sameI provide a groove 4 in the open face edge will expand in a mannerleaving a leaking of the housing surrounding such open face. gap betweenthe ends of the packing. It is A branch groove is provided at 5, which15 the primary object of my invention to prooverlaps the main groovewhereby the ends vide an improved packing joint wherein such of thepacking strip 6 in the groove are a condition cannot occur. placed inoverlapping relation. In this It is a further object of my invention tomanner the packing entirely surrounds the provide an improved housingbox for use housing chamber even when the housing ex 20 with internalcombustion engines or the like, .pands considerably due to the engineheat, which box has my improved packing joint insuch expansion beinggreater in a housing corporated therein. made of aluminum, which metalhas a high In the accompanying drawing I have illuscoeilicient ofexpansion. It will be seen that trated one specific embodiment of myinven by the use of my invention secure and nontion, but it will beunderstood that the in- "leak packing is provided in a construction of:

vention can be otherwise embodied and that the typeillustrated.

the drawing is not to be construed as defin- Having thus described myinvention, What ing or limiting the scope of the invention, I claim is:V the claim appended to this specification be- A housing member having acontinuous e ing relied upon for that purpose. rim to cooperate with asurface and form a In the drawing joint therewith, said rim being formedwith Figure 1 is a perspective View of my ima shallow groove throughout,said groove proved housing boX used as a cover for the having a lateralbranch extending to one side valve tappets and other mechanism on the ofthe main groove and overlapping the latter b top of an internalcombustion engine. for a short distance, and a gasket arranged Figure 2is a bottom plan view of the in said groove and extending throughouthousing. the length thereof and into the branch por- 89 Figure 2) is across sectional view thereof tion, said gasket being adapted to engagethe on line 33 of Figure 2. cooperating surface and to be compressed 40Figure i is an enlarged fragmentary view throughout its length when theparts are of the overlapping packing groove in the clamped together, soas to form a packing housing. joint without interruption.

Referring more specifically to the draW- JOSEPH C. STRAUB.

